These little arms break easily. So buy extras, so you won't have much down time. I haven't had an opportunity to fly my S1 outside yet. So I'm limited to not much space inside. And the heli wasn't tuned quite as well as it could have been. So it drifted to the right too much. So I tried to tune it with the app. and my clumsy fingers slid one of the sliders way too much before I was even ready to make an adjustment. So then it was way too much off and drifted hard to the left and then crashed. So I'm going to have to wait for better weather now. I wish that the T8 transmitter had trim adjustment. It's really inconvenient to have to stop flying and get the bluetooth module set up and connected to your phone and then make the change before you can see if it made the correct adjustment. And if it didn't then you have to repeat the process. And if it crashes, the little DFC arms will easily break. I guess it's better than bending the main shaft or breaking the blades. There has to be a weak point somewhere. so I guess these little DFC arms are the best compromise.
